Datasheet
78K0/Ix2 CHAPTER 4 PORT FUNCTIONS
R01UH0010EJ0500 Rev.5.00 125
Feb 28, 2012
Figure 4-19. Block Diagram of P37
P37/SO11
WR
PU
RD
WR
PORT
WR
PM
PU37
Output latch
(P37)
PM37
V
DD
P-ch
PU3
PM3
P3
Alternate
function
Selector
Internal bus
P3: Port register 3
PU3: Pull-up resistor option register 3
PM3: Port mode register 3
RD: Read signal
WR: Write signal